I loved the Herbies mat on my Music Hall, but hated it on the Linn. Herbies gives a money-back guarantee, so there’s minimal financial risk in trying one, but I’ve tried several mats on the Linn and always came back to the standard felt. Of course, it all depends on whether you want to change the basic character of the Linn sound. I liked what the stock Linn did, so I did not want it changed that much.
